Umuzenguruko wa RNA (circRNA) ni ubwoko bwa RNA idafite code, iherutse kugaragara ko igira uruhare runini mu miyoboro igenzura igira uruhare mu iterambere, kurwanya ibidukikije, n'ibindi. Bitandukanye na molekile ya RNA, urugero nka mRNA, lncRNA, 3 ′ na 5 ′ Impera ya circRNA ihujwe hamwe kugirango ikore uruziga, ibarinda igogorwa rya exonuclease kandi irahagaze neza kuruta umurongo wa RNA.CircRNA yasanze ifite imirimo itandukanye muguhuza imvugo ya gene.CircRNA irashobora gukora nka ceRNA, ihuza miRNA kurushanwa, izwi nka miRNA sponge.Ihuriro ryisesengura rya CircRNA riha imbaraga imiterere ya RNA no gusesengura imvugo, guhanura intego hamwe no gusesengura hamwe nubundi bwoko bwa molekile ya RNA